51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
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#include "common.h"
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#include "common_blending.h"
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uniform float g_CompositeAlpha; // {"material":"compositealpha","label":"ui_editor_properties_alpha","default":1,"range":[0.0, 2.0]}
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uniform vec2 g_CompositeOffset; // {"material":"compositeoffset","label":"ui_editor_properties_offset","default":"0 0","linked":true,"range":[-10.0, 10.0]}
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uniform vec3 g_CompositeColor; // {"material":"compositecolor","label":"ui_editor_properties_color","default":"1 1 1","type":"color"}
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vec2 ApplyCompositeOffset(vec2 texCoords, vec2 textureResolution)
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{
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#if COMPOSITE != 0
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return texCoords + g_CompositeOffset / textureResolution;
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#else
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return texCoords;
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#endif
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}
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vec4 ApplyComposite(vec4 original, vec4 effect)
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{
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#if COMPOSITEMONO == 1
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effect.rgb = CAST3(greyscale(effect.rgb));
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#endif
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effect.rgb *= g_CompositeColor;
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// Only return the effect
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#if COMPOSITE == 0
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return effect;
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#endif
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// Overlay the effect with a blend mode
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#if COMPOSITE == 1
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effect.rgb = ApplyBlending(BLENDMODE, original.rgb, effect.rgb, effect.a * g_CompositeAlpha);
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effect.a = max(effect.a * saturate(g_CompositeAlpha), original.a);
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#endif
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// Put the effect below the original
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#if COMPOSITE == 2
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effect.a *= saturate(g_CompositeAlpha);
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effect = mix(effect, original, original.a);
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#endif
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// Turn the pixels where the original is invisible
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#if COMPOSITE == 3
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effect.a *= saturate(g_CompositeAlpha);
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effect.a *= 1.0 - original.a;
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#endif
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return effect;
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}
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